2689161 has 8 divisors (see below), whose sum is σ = 3646560. Its totient is φ = 1762272.

The previous prime is 2689151. The next prime is 2689163. The reversal of 2689161 is 1619862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2689161 - 2⁵ = 2689129 is a prime.

2689161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2689163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7420 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (455820).

2^2689161 is an apocalyptic number.

It is an amenable number.

2689161 is a deficient number, since it is larger than the sum of its proper divisors (957399).

2689161 is a wasteful number, since it uses less digits than its factorization.

2689161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255.

The product of its digits is 5184, while the sum is 33.

The square root of 2689161 is about 1639.8661530747. The cubic root of 2689161 is about 139.0610811032.

It can be divided in two parts, 2689 and 161, that added together give a triangular number (2850 = T₇₅).

The spelling of 2689161 in words is "two million, six hundred eighty-nine thousand, one hundred sixty-one".